How to: Read Tire Date Codes
All the important information you need to know about your tire is printed on the sidewall. Being able to read this information will help you maintain your tires, and choose new ones when the time comes. Our guide will help you understand all the different numbers and letters and tell you what they mean. Tire Pressure Information This is the maximum inflation pressure for your tire, which is important to know when checking tire pressure. You should check these indicators regularly to ensure the tread is sufficiently deep. The minimum tread depth is in most cases 1.
Side Wall Information
For years, people have relied on tread depth to determine when to replace a tire. If the tread passes the ” penny test , ” they assume the tire still has life, regardless of how old it is, which can be a fatal mistake. Old tires are dangerous, regardless of tread depth.
The manufacture date is located on the sidewall of the tyre, displayed as a four-digit number; the first two are for the week and the last two for the year.
The first two digits of the code represent the week of production during the year from 1 to 52 while the second two digits represent the year of manufacture. In this example, the manufacture date code is – where 47 denotes the week of manufacture and 18 represents the year, meaning the tyre manufacture date was the 47th week of If your tyres are printed with only a 3-digit number, it means your tyres were manufactured before and should be replaced asap.
There is no definitive tyre age limit as to when you should replace your tyres but once your tyres reach 7- 10 years old, you should keep a close eye on their condition and consider replacing them. Tyre ageing is commonly identified by small cracks, known as crazing, which appear in the tyre sidewall. This is brought about when UV light oxidises the rubber causing it to dry out.
While tyres contain anti-oxidising chemicals which significantly slow down the rate of ageing, this wax-like substance is only released when the tyre is in motion. Therefore, if the tyre is not used frequently or is stored away ineffectively, they will age more quickly rendering them unroadworthy when returned to use.
How To Read Your Tire Sidewall
Tires have very useful information molded onto their sidewalls. It shows the brand and model name of the tire, its size, whether it is tubeless or tube type, the maximum load and the maximum inflation, safety warning s , and much more. The load index should not be used independently to determine replacement tire acceptability for load capacity.
Learn how to read a tire sidewall with tips from BFGoodrich. Understand your tire’s type, width, speed rating and more, plus discover your Department of.
Knowing if your car has TPMS will enable you to find the right tires. Not sure? Enter your phone number to receive a text message with a link for this information. The number will not be used for any other purpose. Carrier charges may apply for receiving text messages. But what does it all mean? Fortunately, the answer to this question is yes.
Your tire’s information
The sidewall of your tires is filled with important information that tells you everything about your tire regarding the dimensions, construction, operating characteristics and manufacturer. The easiest way to understand tire markings is to take an example and break it down. The absence of a letter at the beginning of the size description indicates that the tire is Euro-Metric.
For example, a tire with a DOT of XXXXXXX has a manufacture date from the 27th Be aware of the following when you inspect your sidewall markings.
Tires have very useful information molded onto their sidewall. It shows the brand and model name of the tire, its size, whether it is tubeless or tube type, the maximum load and the maximum inflation, safety warning s , and much more. The load range identifies the tire’s load and inflation limits. Load Index – The load index is a numerical code associated with the maximum load a tire can carry at the speed indicated by its speed symbol under specified service conditions.
The load index should not be used independently to determine replacement tire acceptability for load capacity. Max Load kg lbs and kPa 35 psi Max Pressure Cold — Passenger Example indicates maximum load and maximum cold inflation pressure of the tire. Sidewall markings are given in both metric and English units. Max Load Single kg lbs at kPa 80 psi Max Pressure Cold Max Load Dual kg lbs at kPa 80 psi Max Pressure Cold — Light Truck Example indicates the maximum load of the tire and corresponding maximum cold inflation pressure for that load when used in a single or dual configuration.
Department of Transportation U. DOT tire safety performance standards. The first two characters are the factory code indicating where the tire was made. The last four digits are numbers identifying the week and year of manufacture Example: “” means third week of the year If a tire DOT ends in only three 3 digits, the tire was manufactured before January and should be removed from service and be scrapped because it is over 10 years old.
Tire Date Code and How to Read It
F-1 is free rolling single rib steer tire, best suited for wet mucky soils, typically complementing rear R F-2 is free rolling 3-Rib steer, general dry land farming tire, typically complementing rear R F-2M is free rolling 4-Rib steer, general dry land farming tire, typically complementing rear R
From sidewall, so you informed. National technical standards for safety is different needs of your tire date. You can be different. Interesting facts.
If you’ve ever wondered how old your tires are, it’s an easy bit of information to find out. Tires actually have a “born-on” date, and it’s listed right on the tire itself. Almost everything you need to know about your tires is molded into the sidewall and coded according to federal requirements, including the specific week and year when a tire was made.
To read the date on a tire, look near the edge of the rim for a series of characters starting with the letters DOT. This code can tell you the manufacturer of the tire and the factory where it was made, as well as provide lot-specific information used for tracking in case of a recall. The last four digits of this code tell you when your tire was manufactured.
The first two numbers indicate what week of the year it was made out of 52 weeks per year , and the second two numbers represent the year. For example, would reveal that a tire was manufactured during the 52nd week of the year
How to read your tyre’s sidewall markings
The DOT number, an alpha-numeric code found on the tire sidewall, has consistently confused consumers and tire professionals. The last four characters of the character code contain the week and year the tire was made. For example, signifies that the tire was made during the third week of Tires made prior to used a three-digit date configuration at the end of the DOT code.
In those cases, signifies that the tire was manufactured during the third week of — or the A change is necessary because safety is involved, particularly the tire aging issue.
On the sidewall of a tyre you will be able to find a 10 to 12 digit serial tyre identification number, which is usually preceded by the acronym “DOT”, for example.
What is the proper tire inflation? Maintain air pressure at the maximum PSI recommended on the tire sidewall. It’s best to check tire pressure with a quality tire gauge when tires are cold and in the shade. Under inflation is the number one cause of trailer tire failure. An underinflated tire creates abnormal tire flexing and excessive heat causing: – Ride and handling problems – Decreased fuel efficiency – Reduction of tire life Driving on tires with too much air is also not recommended.
Over-inflated tires are more likely to cut, puncture or fail by sudden impact. How do I determine the age of my trailer tires? Every tire has a date code stamped on the sidewall, which is the date the tire was manufactured. The date code is usually at the end of the DOT I. The first two numbers indicate the week out of 52 and the last two digits indicate the year. For example, means the tire was manufactured the 34th week of Please keep in mind that remaining tread is not an indicator of tire life as the irregular duty cycle requires that trailer tires sit in extended storage under static load conditions often for long periods without movement or maintenance causing the tire carcass internal structure to break down, a condition undetected by visual inspection.
Trailer tire requirements differ greatly from automotive or light truck tires.
If the u. From sidewall, so you informed. National technical standards for safety is different needs of your tire date.
Find a tire load index chart, tire speed rating chart, and other important information included on a tire sidewall.
E-mail Share this page to my friends. Your Information Message. Clear Fields.